8-42
Performance Tests
FSK Deviation Accuracy Performance Test (Option 1EP Only)
The status should look like the following:
NOTE
The field indicated as “----” may be any value or automatically set.
Configure the 8648
1. Set the frequency, press:
FREQUENCY
,
155
,
MHz
.
2. Set the amplitude, press:
AMPLITUDE
,
0
,
dB(m)
.
3. Set the FSK deviation, press:
FM
,
4.8
,
kHz
.
4. Turn the RF output on, press:
RF ON/OFF
.
5. Set
FORMAT
to
SERVICE
; rotate the AMPLITUDE/ENCODER knob until
FORMAT
SERVICE
appears.
6. Set the FSK mode, press
⇓
(NEXT) and rotate the AMPLITUDE/ENCODER knob until
CALIBRATION FSK 1200/2
appears.
7. Turn the encoder on, press:
INCR SET
(START/STOP).
Inst
Digital Demodulation
Channels
2
Mode
Meas from input
Receiver
RF 2650 MHz
Format
2 FSK
Rate
1.2 kHz
Alpha
0.05
Meas filter
Low Pass
Normalize
off
Ref filter
rect
Clk Adj
0 sym
Freq
Span
20 kHz
Center
155 MHz
Bw/Win
Rbw
300 kHz
Window
flat top
Time
Puls-srch
off
Sync-srch
on
Pts/sym
20
Srch
----ms
Result
10 sym
Sync offset
0 sym
Average
Status
off
Num averages
10 (Avg Off)
Type
---
Repeat avg
---
Overlap
---%
Fast avg
---
Содержание 3847A
Страница 12: ...xviii Contents ...
Страница 18: ...1 6 Operation Quick Overview ...
Страница 20: ...1a 2 Operation Examples ...
Страница 48: ...1a 30 Operation Examples Signaling a Numeric Type FLEX Pager Option 1EP Only ...
Страница 102: ...1b 54 Operation Reference Function ...
Страница 114: ...1c 12 Operation messages Service Messages ...
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Страница 163: ...2 2 GPIB Programming ...
Страница 167: ...3 4 Installation Connecting AC Power Figure 3 1 Replacing the Fuse ...
Страница 168: ...3 5 Installation Connecting AC Power Figure 3 2 Power Cable and Mains Plug ...
Страница 173: ...3 10 Installation Shipping the Signal Generator ...
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Страница 188: ...4 2 Specifications ...
Страница 198: ...5 10 Service Safety Notes ...
Страница 200: ...5a 2 Theory of Operation Figure 5a 1 8648A Simplified Block Diagram ...
Страница 201: ...5a 3 Theory of Operation Figure 5a 2 8648B C D Simplified Block Diagram ...
Страница 218: ...5a 20 Theory of Operation A30 Pager Encoder 8648A Option 1EP ...
Страница 220: ...5b 2 Troubleshooting Information Troubleshooting Checklist Troubleshooting Checklist ...
Страница 224: ...5b 6 Troubleshooting Information Power Supply Distribution ...
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Страница 250: ...6 10 Replaceable Parts 8648B C D Replaceable Parts ...
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Страница 252: ...6 12 Replaceable Parts 8648B C D Replaceable Parts Figure 6 3 8648B C D Replaceable Parts A11 A12 a13 A14 Detailed View ...
Страница 318: ...7 62 Adjustments Agilent Service Support Software ...
Страница 327: ...8 9 Performance Tests FM Accuracy Performance Test Test Record 8648B Table 8 23 8648C Table 8 48 8648D Table 8 73 ...
Страница 413: ...8 95 Performance Tests 8648B Test Record ...
Страница 466: ...8 148 Performance Tests 8648D Test Record ...